I’ve soldered the headers, with chip on top – looked natural. But the GPIO silkscreen markings got hidden at the bottom of the module – i think it’s better for development to have them on top, shorted out text is OK.

There are two rows left on both sides of the the breadboard.

So, let’s see what the extra flash is good for.

SSL – Is SSL the right solution for #IoT?

FOTA – What about the FOTA upgrades security?

Going down the rabbit hole it seems that the MOST important and hard part of a IoT implementation is to get the security right. So the extra flash will present an opportunity to test to some ideas on how to do it. And we need it for the service we are building – it’s just vital to have and to have it right.